Scalene error: received signal SIGSEGV #110
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Now works fine with the latest version of Scalene; please upgrade ( |
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I got this error too in simonw/datasette#1219 - steps to reproduce: That produced the following output for me: I'm on macOS and the system crash dialog showed up containing the following: |
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My crash report starts on this line: That's this code here: https://github.com/simonw/datasette/blob/aa1fe0692c2abb901216738bfb35f9fcc5090e7d/datasette/utils/__init__.py#L551-L558 def detect_json1(conn=None):
if conn is None:
conn = sqlite3.connect(":memory:")
try:
conn.execute("SELECT json('{}')")
return True
except Exception:
return FalseCould this be something to do with Scalene attempting to profile |
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I just discovered this issue had been closed; the current version of Scalene in the repository works on the above example. Would be great if you could put it through its paces, @simonw !
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We just found and fixed a bug that specifically affected SQLite on Mac, so this hopefully will be fixed! |
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Please verify (if you don't mind), @simonw @shaharkadmiel - thanks! |
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I am also experiencing the same error in code which isn't importing sqlite but using PyTorch. macos 11.2.3 using the version directly from master. The SIGSEV error is preceded by a barrage of errors of type |
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I wasn't able to reproduce this, @gkaissis - if you can meet on Discord, we can try to see what's going on - https://discord.gg/6Dtaf6HW3m |
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@gkaissis if possible could you provide a minimal example of this behavior? |
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Replicated with |
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I wanted to update on this issue-- it seems like this is actually a problem in PyTorch itself and how it interacts with signals on MacOS. I think it's a good idea to keep this issue open, but I'm also going to open up an issue in PyTorch. |
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For reference, this issue has been posted on the PyTorch repo. As it's not a Scalene bug, I'm closing the issue here. |
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Note: Scalene works fine with at least one earlier version of PyTorch (1.5.1), which also does not exhibit this bug! |
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Documented in |
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Getting
Scalene error: received signal SIGSEGVwhen trying to profile a python program.I believe one of the imports at the top of my code breaks the profiler.
test.py:
profiling
output:
Scalene error: received signal SIGSEGVDesktop:
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